296 lines
6.2 KiB
C
296 lines
6.2 KiB
C
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/************************************************************/
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/* Windows Write, Copyright 1985-1992 Microsoft Corporation */
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/************************************************************/
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/* Select2.c -- Less-frequently-used selection routines */
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#define NOCLIPBOARD
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#define NOGDICAPMASKS
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#define NOCTLMGR
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#define NOVIRTUALKEYCODES
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#define NOWINMESSAGES
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#define NOWINSTYLES
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#define NOSYSMETRICS
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#define NOMENUS
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#define NOSOUND
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#define NOCOMM
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#define NOPEN
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#define NOWNDCLASS
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#define NOICON
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#define NORASTEROPS
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#define NOSHOWWINDOW
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#define NOATOM
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#define NOKEYSTATE
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#define NOSYSCOMMANDS
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#define NOBITMAP
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#define NOBRUSH
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#define NOCOLOR
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#define NODRAWTEXT
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#define NOMB
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#define NOPOINT
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#define NOMSG
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#include <windows.h>
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#include "mw.h"
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#include "toolbox.h"
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#include "docdefs.h"
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#include "editdefs.h"
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#include "dispdefs.h"
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#include "cmddefs.h"
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#include "wwdefs.h"
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#include "ch.h"
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#include "fmtdefs.h"
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#include "propdefs.h"
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extern int vfSeeSel;
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extern typeCP vcpFirstParaCache;
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extern typeCP vcpLimParaCache;
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extern typeCP vcpFetch;
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extern CHAR *vpchFetch;
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extern int vccpFetch;
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extern typeCP cpMinCur;
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extern typeCP cpMacCur;
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extern struct SEL selCur;
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extern int docCur;
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extern struct FLI vfli;
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extern struct WWD rgwwd[];
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extern int vfSelHidden;
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extern int wwCur;
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extern struct CHP vchpFetch;
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extern struct PAP vpapAbs;
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extern struct WWD *pwwdCur;
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extern int vfInsEnd;
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extern typeCP CpBeginLine();
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extern int vfPictSel;
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extern int vfSizeMode;
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extern struct CHP vchpNormal;
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extern int vfInsertOn;
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extern struct CHP vchpSel; /* Holds the props when the selection
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is an insert point */
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extern int vfMakeInsEnd;
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extern typeCP vcpSelect;
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extern int vfSelAtPara;
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/* true iff the last selection was made by an Up/Down cursor key */
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extern int vfLastCursor;
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/* C P L I M S T Y S P E C I A L */
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typeCP CpLimStySpecial(cp, sty)
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typeCP cp;
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int sty;
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{ /* Return the first cp which is not part of the same sty unit */
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int wb, ch, ich;
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struct EDL *pedl;
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/* Other cases covered in CpLimSty, our only caller */
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Assert( cp < cpMacCur );
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Assert( cp >= cpMinCur );
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Assert( sty == styWord || sty == stySent );
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/* Special kludge for picture paragraphs */
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CachePara(docCur, cp);
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if (vpapAbs.fGraphics)
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return vcpLimParaCache;
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FetchCp(docCur, cp, 0, fcmChars + fcmNoExpand);
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Assert(vccpFetch != 0);
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/* Must be word or sentence */
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wb = WbFromCh(ch = vpchFetch[ich = 0]);
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#ifdef CRLF
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if (ch == chReturn)
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return vcpFetch + 2;
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#endif
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if (ch == chEol || ch == chSect || ch == chNewLine || ch == chTab)
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/* EOL is its own unit */
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return vcpFetch + 1;
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if (wb == wbWhite && sty == stySent)
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{ /* Might be between sentences; go back to text */
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FetchCp(docCur, CpFirstSty(cp, styWord), 0, fcmChars + fcmNoExpand);
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wb = WbFromCh(ch = vpchFetch[ich = 0]);
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}
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for (;;)
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{
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if (++ich >= vccpFetch)
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{ /* Get next line and set up */
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FetchCp(docNil, cpNil, 0, fcmChars);
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if (vcpFetch == cpMacCur)
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return cpMacCur; /* End of doc */
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ich = 0;
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}
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if (sty == stySent)
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switch (ch)
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{
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case chDot:
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case chBang:
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case chQMark:
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sty = styWord;
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wb = wbPunct;
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}
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switch (ch = vpchFetch[ich])
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{
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case chTab:
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case chEol:
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case chSect:
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case chNewLine:
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#ifdef CRLF
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case chReturn:
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#endif
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goto BreakFor;
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}
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if (sty == styWord)
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{ /* Word ends after white space or on text/punct break */
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int wbT = WbFromCh(ch);
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if (wb != wbT && (wb = wbT) != wbWhite)
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break;
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}
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}
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BreakFor:
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return vcpFetch + ich;
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}
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/* C P F I R S T S T Y S P E C I A L */
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typeCP CpFirstStySpecial(cp, sty)
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typeCP cp;
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int sty;
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{ /* Return the first cp of this sty unit. */
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typeCP cpBegin;
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int wb, ch, dcpChunk;
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typeCP cpSent;
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CHAR rgch[dcpAvgSent];
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int ich;
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typeCP cpT;
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/* Other cases were covered by CpFirstSty, our only caller */
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Assert( cp > cpMinCur );
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Assert( sty == stySent || sty == styWord );
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if (cp >= cpMacCur)
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cpT = cp = cpMacCur;
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else
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cpT = cp++;
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CachePara(docCur, cpT );
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if ((vcpFirstParaCache == cpT) || vpapAbs.fGraphics)
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return vcpFirstParaCache;
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dcpChunk = (sty == styWord) ? dcpAvgWord : dcpAvgSent;
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cpBegin = (cp > dcpChunk) ? cp - dcpChunk : cp0;
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FetchRgch(&ich, rgch, docCur, cpBegin, cp, dcpChunk);
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wb = WbFromCh(ch = rgch[--ich]);
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#ifdef CRLF
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if(cpBegin + ich == 0)
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return cp0;
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if (ch == chEol && rgch[ich-1] == chReturn) /* EOL is its own unit */
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return cpBegin + ich - 1;
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if (ch == chEol || ch == chReturn || ch == chSect || ch == chNewLine || ch == chTab)
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return cpBegin + ich;
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#else /* not CRLF */
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if (ch == chEol || ch == chSect || ch == chNewLine || ch == chTab) /* EOL is its own unit */
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return cpBegin + ich;
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#endif /* CRLF */
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if (wb == wbText)
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cpSent = cpBegin + ich;
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else
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cpSent = cpNil;
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for (;;)
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{
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if (ich == 0)
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{
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if (cpBegin == cpMinCur)
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return cpMinCur; /* beginning of doc */
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cpBegin = (cpBegin > dcpChunk) ? cpBegin - dcpChunk : cp0;
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FetchRgch(&ich, rgch, docCur, cpBegin, cp, dcpChunk);
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}
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ch = rgch[--ich];
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CachePara( docCur, cpBegin + ich ); /* Needed for pictures */
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if (ch == chEol || ch == chSect || ch == chNewLine ||
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ch == chTab || vpapAbs.fGraphics )
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break; /* EOL Always ends a unit */
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if (sty == styWord)
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{
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if (wb != wbWhite)
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{
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if (WbFromCh(ch) != wb)
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break;
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}
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else
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wb = WbFromCh(ch);
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}
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else
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{ /* Test for sentence. */
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switch (ch)
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{
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case chDot:
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case chBang:
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case chQMark:
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if (cpSent != cpNil)
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return cpSent;
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}
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switch (WbFromCh(ch))
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{
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case wbText:
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cpSent = cpBegin + ich;
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wb = wbText;
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break;
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case wbPunct:
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switch (wb)
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{
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case wbWhite:
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wb = wbPunct;
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break;
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case wbText:
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cpSent = cpBegin + ich;
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}
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break;
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case wbWhite:
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if (wb == wbPunct)
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cpSent = cpBegin + ich + 1;
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wb = wbWhite;
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break;
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}
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}
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}
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return cpBegin + ich + 1;
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}
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/* W B F R O M C H */
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int WbFromCh(ch)
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int ch;
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{ /* Return word-breakness of ch */
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switch (ch)
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{
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case chSpace:
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case chEol:
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#ifdef CRLF
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case chReturn:
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#endif
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case chSect:
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case chTab:
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case chNewLine:
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case chNBSFile:
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return wbWhite;
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case chNRHFile:
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return wbText;
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default: /* we are using the ANSI char set that windows used */
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return ((isalpha(ch) || isdigit(ch))? wbText : wbPunct);
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}
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}
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